864132739 has 2 divisors, whose sum is σ = 864132740. Its totient is φ = 864132738.

The previous prime is 864132727. The next prime is 864132757. The reversal of 864132739 is 937231468.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 864132739 - 2¹⁷ = 864001667 is a prime.

It is a super-2 number, since 2×864132739² = 1493450781223284242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 864132695 and 864132704.

It is not a weakly prime, because it can be changed into another prime (864132799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432066369 + 432066370.

It is an arithmetic number, because the mean of its divisors is an integer number (432066370).

Almost surely, 2^864132739 is an apocalyptic number.

864132739 is a deficient number, since it is larger than the sum of its proper divisors (1).

864132739 is an equidigital number, since it uses as much as digits as its factorization.

864132739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 864132739 is about 29396.1347629242. The cubic root of 864132739 is about 952.4894041528.

The spelling of 864132739 in words is "eight hundred sixty-four million, one hundred thirty-two thousand, seven hundred thirty-nine".